You must try it:
1 package Betty Crocker milk chocolate cake mix
1 small package (3.9 oz) Jello instant chocolate pudding
1/2 c sugar
3/4 c butter melted
3/4 c water
4 large eggs
1 8 oz (1 cup) carton regular sour cream
3-6 oz Nestle semi-sweet mini morsels
Preheat oven to 350. Grease Bundt pan with Crisco and "flour" the pan with a little bit of the cake mix, to avoid the white gunk you get when you use actual flour.
Mix the first six ingredients in a mixer until well blended. Add sour cream, blending completely. Stir in chocolate chips.
Pour mixture into pan and bake for 50-55 min. Cool in pan 15 min, then turn upside down onto cooling rack. While still warm, lightly dust the top with powered sugar.